I've worked with inspectors before, and I know that they are worthless enough that I can look at basement walls and see the roof on my own when I drive past the place, I don't need to spend a few hundred dollars and lose a property because I wanted to waste my time with some "inspector" who has a flashlight and a checklist.

I asked him if he could match 7 year old carpet wear, UV fade, and all, exactly?

That's all I visit as well and we have yet come across squatters and we take in our flashlights.

Some of those rechargable flashlights that plug into wall outlets and turn on automatically if power is lost. 

If the problem (for example a water leak) is not immediately identifiable you ( or contractor) can cut a square hole in the drywall, take a look up there using a flash light to locate the problem, then once it is fixed, patch it up, paint over it and it will be good as new.

What you are supposed to do is cut a small hole in the ceiling and go up with a flash light to find the leak.

Meet the inspector with your camera and a flashlight.  

Frantically, I touched base with both remediators that Thursday evening and they both confirmed they would use a flashlight and a breathing mask (personal protective equipment) when walking through the unit in question.

Invest in a good flashlight, take notes when visiting the property.

Poke around with a screw driver , look in the basement or crawlspace with a good flashlight , look for more .